Hydraulic swivel.



No. 800,185. y A EATENEED SEPT. 26, 1905. A. THoMsoN @L M. J. MLAUGELIN.

' HYDRAULIC SWIVEL.' APPLICATION FILED APE;25, 1905'.

' s y u conceive? l we, AALEXANDnn THOMSON u and we do hereby dea "ll "'vin'g to'be a full, clear, and ext 'descri Mon'fof'ithe invention, such' as will enable. otherslfskill'ed in the art to which it ap-l perta'instomakeand use the same. .Y

Our invention, relates to that class of hydraiilics'wivels designed for' use in connection withrbtairywellldrilling machines where watr isiconductedlun'der heavy pressure from a l.pump to the poiht'of a drill secured `to the The in'veritidncontem plates an organization Y'ofnipeiiatingiel'ements whereby a suppl'- i Zbflioselmay"beisiippoted ina given position and f', -retainedagainstmoveinent-in relation to the rotating l Water".

l-t'ubewhile supplying i't'with -Thcdvicedn sts, primarily, of a swivell proportion, and

block and Asupp"irti'iig; means therefor, a tubular swivel"-'stenjiv eXtendin g through said block,

and means provided for rotatably Asupportiim In the l'drawing the iigure represents alon-v gitudinal vertical central section illustrating the'construction of a hydraulicswivel embodying theg'fcatures of.l ourinvention.

In making wells by the rotary process itis necessary to continually force water to the r been invented for accomplishing this; but allA ydrill-point attached to the lower end of the well-casing and rotate said casing while being supplied with water. Severalfdevlce's have use a hose-stem 4 and swivel-stem, also-other complications for the purpose. As disclosed' in the' accompanying drawing, our swivel with but'one stern supports the water-supply pipe in a stationary condition while the casing is desired object.

A Specifca'tion of LettersdPatent. Atpiiaao sied April 25,1905. strain. 257.393.

fini M cLAUGHLnv, citizens ,residing at Sourlake, inv

and useful Improvements lnular chamber for purposes lCollar F is also threaded upon it for locking the two and obviating danger of said v rotated,'thus much moresiinply attaining the v PATENTE Umea. i i

oii'soii 'ANnauAiaoiiA .i'osiiii'i ,iieL-AUGHLIN, or 'sonit- ...,LAKnTEXAs je HWRAUUG swivel- I.

Patented sept. 2e, 190.5.y

Referring more particularly to the drawing, A denotes a bail or clevisof any preferred form-enlarged and vapertured atits ends, as at B B,l and having' bearings o n the projecting reduced ends of the hollow trunnion-block C, which'vblock revolubly surrounds'the swivelstein D. The trunniomblock C, as suggested, .is hollow and is formed-with an "interior anhereinafter made apparent. The swivelfs'tem D is exteriorly threaded at the lower end and a casing-bushing E fitted to same. A janilirrnly bushing working loose and unscrew-ing with the casing-section to be connected to the lower end of said bushing. lA collar G surrounds vstern D just beloipvandpreferably formed integral with the` trunnion-blockG. 1t is cha1n bered, forming astuflng-box H, which is filled with suitable packing material. Agland yl is threaded into the lower end of said collar Gr for adjustably closing said retaining the packing in position. v

which will be f.

stuffing-box H and Mounted within and resting upon thexinner 4 lower surface of the trunnion-block-C is an annular collar J, and a similar collar KJ is placed above collar. J, the'space between said collars being maintained by means -of conical rollers L L or other antifriction devices trav- Q eli.' g within annular raceways M and N,

eral play'of said cones.

Forming part of the swivel-stem is a solid collar O, the lower side resting upon collar K. l A head P, secured .by stud-bolts Q, closes the annular chamber of truiinion-block C and rests uponl collar O, whereby atight closure is'made for it, alsofor collars'J and K, retain? ing all against 'vertical movement, besides forming a receptacle that 'may be filled with oil and kept free ofdirtff R .is an extension ofthe head P. It is exteriorly threaded and chambered, forming an annular stuiiing-box S, having a gland T adjustably secured in position byv a superimposed annular cap U, interiorly threaded and IOO provided with an inner annular shoulder rest- `ing upont'heilange of gland .,T,- whereby the packing is adjustably compressed around the swivel-stein D. A jam-collar V, screwed onupper end of gland'T, prevents' the Weight of hose resting upon't'he packing- :A gooseneck -W is threaded into the upper end of the gland 8s formed in the said collars for limiting the lat- 'T and carries a suitable union or couplinggX,

adapted to receive any preferred form of supply-hose Y.

said block, a collar surrounding said swivelstem, a snndarcollar spaced above the iirst- .mentioned collar. ,antiirlction means inter- The operation of our improved device is as l posed between said collars all within said trufollows: The bail A, being Isupported by` any preferred tackle carried by a suitable derrick, supports the elements carried by the trunnion-block, and the parts are brought into llinewith the section of the well-boring tube,

The casing-bushing on the lower end of swivelstern D isconnected to a joint oi' easing, and the said section of casing, together with the improved swivel, is raised to a vertical positionl and connected with the casingalready in the Well. 1 The Water now be. forced through the hose conneetion'X, whence it will Eindl its Way down through the swivel-stem D and into the casing, down which it passes,

l boxes S and H.

gnding exit through holes for the purpose formed in the drill-point that is screwed to the bottornend of the string ot' casing, the

said casing being given a rotary 'motion by any of the weil-known means, said casing and rotating means not being shown.` Buring operation t-he swivel-stem D, collar K, the jamcollar F, and casing-bushing E'wiil revolve with the easing, to which the partsy are con'- nected. The collar J, bailVA, trunnion-block C, Withall its other connections, inciuding supply-hose connections, will remain stationary.- twill be apparent that leakage'ot' water frornrthe swivel-stern will be prevented by means of. the packing within the stuing- Havingthns described our invention, we claim as new and' desire vto secure by Letters Patent-.- 4

ln hydraulic swivel; the combination with a tr-unnion-bloek and a bail supporting lthe same, of'a swivel-stern extending through mon-block and a head seeured to said tru nnionblock and entirely inclosing said collars and antit'riction means.

2. ln a hydraulic swivel, the combination said stem, antifriction-bearings interposed between said collars, asohd collar on said swivelstern forming a bearing `for the uppermost collar, all inclosed within a trunnion-bloch.

31A hydraulic swivel, comprising a trunnion-block. a bail for lifting the same swiveledthereto, a swivel-stem passing through said trunnion-block, and'acting also as a hosestem, an annular collar surrounding said swivel-stem, a similar collar above the saine, both within said trunnion-bloch, a stu-flingboxl surrounding the upper end of said swivelstem, antifrie'tion means interposed between said collars, and means`for retaining said col- -lars and antifricton means in position, substantially as herein specilied.

` 4.. .A hydraulic swivehbomprising a swivelsteni, Open at both ends, meansfor rerolnbly supporting same, a stu'ii'ng-box surrounding the upper end thereof, meansl for closing said stuihng-box, and a similarstuiiing-box below trunnion-blocli for retaining'oil within said trunnon-block, substantially as described.

In testimony whereof we aiiix our signatu res in presence of two witnesses.

' .ALEXANDER THOMSON,

lllAliACllA .lOSElll illtlAl'Glllil. Witnesses: A

- JAS, RRILEY.

JOSEPH MoRAY. 

